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彗核

na.cometary nucleus
网络comet nucleus; Photo By Giotto

彗核

英-汉网络释义

彗核

nucleus

彗星的固体部份称为彗核(nucleus) ,其主要组成为尘埃,石块,冰块及凝结成固态的氨,甲烷,二氧化碳等化合物.等科学家指出，每 …

comet nucleus

天文术语_互动百科 ... comet—— 彗星 comet nucleus—— 彗核 conjunction—— 合 ...

Photo By Giotto

哈雷彗星的彗核 (Photo By Giotto) 5 km 彗星轨道抛物线椭圆双曲线彗星绕太阳的路线哈雷彗星命名：在1705 年由艾得蒙 . …

1

The "Deep Impact " made the powdery fragments on the surface of the comet nucleus splash in all directions .

“深度撞击 ”使彗核表面的细粉状碎屑四处飞溅。

2

a comet consists of a tiny nucleus with diameter less than 10km . the nucleus is made up of frozen gases and dust.

在彗星中心是一颗由凝固了的气体和尘埃组成直径小于 10 公里的细小彗核。

3

The fan-shaped region that stretches upward from Johnson's nucleus (yellow ball in the middle ) represents the dust "tail " of the comet .

从 Johnson 彗星的彗核（照片中部的黄色球体）向上延展的扇状区域描绘出了这颗彗星的尘埃 “尾 ”。

4

The nucleus might have a small rocky core .

彗核内可能有一个小的石质核心。

5

The cause of dust tail striae are not known for sure , but are possibly related to fragmentation of comet 's nucleus .

现在还不能确定造成尘埃状细纹的原因，但可能与彗核的分裂有关。

6

7

The nuclei of most comets are thought to measure 10 miles (16 km ) or less.

大部分彗星的彗核估计有 10 英里（16 公里）宽。

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